(1)Where the gross total income of an assessee, being a Developer, includes any profits and gains derived by an undertaking or an enterprise from any business of developing a Special Economic Zone, notified on or after the 1st day of April, 2005 under the Special Economic Zones Act, 2005, there shall, in accordance with and subject to the provisions of this section, be allowed, in computing the total income of the assessee, a deduction of an amount equal to one hundred per cent. of the profits and gains derived from such business for ten consecutive assessment years.